131606222090 has 32 divisors (see below), whose sum is σ = 270854146944. Its totient is φ = 45101908800.

The previous prime is 131606222071. The next prime is 131606222141. The reversal of 131606222090 is 90222606131.

It is a happy number.

It is a super-3 number, since 3×131606222090³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263636 + ... + 576815.

It is an arithmetic number, because the mean of its divisors is an integer number (8464192092).

Almost surely, 2^131606222090 is an apocalyptic number.

131606222090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131606222090 is an abundant number, since it is smaller than the sum of its proper divisors (139247924854).

131606222090 is a wasteful number, since it uses less digits than its factorization.

131606222090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842702.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 131606222090 in words is "one hundred thirty-one billion, six hundred six million, two hundred twenty-two thousand, ninety".